2044220421 has 8 divisors (see below), whose sum is σ = 2728724544. Its totient is φ = 1361264960.

The previous prime is 2044220417. The next prime is 2044220459. The reversal of 2044220421 is 1240224402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2044220421 - 2² = 2044220417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044220921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384081 + ... + 389366.

It is an arithmetic number, because the mean of its divisors is an integer number (341090568).

Almost surely, 2^2044220421 is an apocalyptic number.

It is an amenable number.

2044220421 is a deficient number, since it is larger than the sum of its proper divisors (684504123).

2044220421 is an equidigital number, since it uses as much as digits as its factorization.

2044220421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774331.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2044220421 is about 45213.0558688527. The cubic root of 2044220421 is about 1269.1391485687.

Adding to 2044220421 its reverse (1240224402), we get a palindrome (3284444823).

The spelling of 2044220421 in words is "two billion, forty-four million, two hundred twenty thousand, four hundred twenty-one".